ISSN:
1573-5028
Keywords:
sorghum
;
atp6
;
mitochondrial genome
;
amino extensions
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Sorghum mitochondrialatp6 occurs as one copy in the line Tx398 and as two copies in IS1112C. In IS1112C a repeated sequence diverged within theatp6 open reading frames. The two open reading frames (1137 bp,atp6-1; 1002 bp,atp6-2) share an identical conserved region of 756 bp but are flanked 5′ by divergent extensions of 246 (atp6-1) or 381 bp (atp6-2). Tx398 carried onlyatp6-2. The breakpoint of the repeated sequence of the conserved core region corresponds to the amino acid sequence Ser-Pro-Leu-Asp, which is the amino terminus of the proteolytically processed yeast ATP6. The 5′ extensions ofatp6-1 andatp6-2 were similar to those of rice and maize, respectively. Each open reading is transcribed, however nuclear background influenced transcriptional patterns ofatp6-2 in IS1112C.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00029150
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